Can soneone tell me if I am blading

[boi]

Hi,

I am 18 years old. I was wondering if I was starting to go bald. My father is 50 and is at NW4.5 . My 20 yo brother is NW1. Both my grandfathers suffer hairloss. Actually, a lot of people in ma family suffers from it. I recently discovered that im thinning at my temples a bit.Will i go bald at mid 20's? If so , can someone suggest treatment?

Thanks